How do you determine the correct size pool heater for an inground pool?

Answer:
You need to check your gas lines for the size of piping under ground. The size of the heater is all personal preference really, but its up to how much gas flow you can get which will tell you if you can get the bigger, better heaters.
First answer by ViiRoah7. Last edit by ViiRoah7. Contributor trust: 1 [recommend contributor recommended]. Question popularity: 1 [recommend question].